Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2004CELICA GT, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 99 (ENGINE CONTROLS (REMOVAL & INSTALLATION))FUEL SYSTEMFUEL SYSTEM PRESSURE RELEASE
2004 Toyota Celica GT, Standard
Fuel System Pressure Release
2004 Toyota Celica GT, StandardSECTION Fuel System Pressure Release
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 Lexus SC 430, 2003 Lexus RX 300, 2003 Lexus LX 470, 2003 Lexus LS 430, and 2003 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
- On ES300, GS300, GS430, IS300, and LS430, remove rear seat cushion and cover plate on floor panel for access to electrical connector for fuel pump. Disconnect electrical connector for fuel pump. This is electrical connector for fuel pump and fuel gauge sending unit. Go to step 5.
- On LX470, disconnect electrical connector for fuel pump. See Fig 1. This is electrical connector for fuel pump and fuel gauge sending unit. Go to step 5.
- On RX300, remove driver's side rear seat. Remove carpet and cover plate on floor panel for access to electrical connector for fuel pump. Disconnect electrical connector for fuel pump. This is electrical connector for fuel pump and fuel gauge sending unit, and is located on top of fuel tank, near fuel pump. Go to step 5.
- On SC430, disconnect fuel pump connector. Go to next step.
- On all models, start engine and allow engine to idle until engine stalls. Turn ignition off. Reinstall electrical connector for fuel pump and any removed components.
- Disconnect negative battery cable. Place suitable container under fuel line connection. Cover fuel line connection with shop towel. Slowly loosen fuel line connection, allowing any fuel pressure to be released. Once fuel pressure is released, fuel system components may be serviced.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.